– Superheroes: A Never-Ending Battle to be shown in one three-hour programming block, beginning at 8pm ET (check local listings) – ARLINGTON, VA; SEPTEMBER 5, 2013 – PBS announced today that Tuesday, October 15, 2013, is “Superheroes Night,” featuring a three-hour block dedicated to the groundbreaking program SUPERHEROES: A NEVER-ENDING BATTLE. The newest film from…